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Finding the Third Proportional to 1,969,978.13 and 4,313,621.25

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Solution

The third proportional to 1,969,978.13 and 4,313,621.25 is: 9,445,449.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,978.13 : 4,313,621.25 = 4,313,621.25 : x
  2. Step 2: Convert to fraction form
    1,969,978.13/4,313,621.25 = 4,313,621.25/x
  3. Step 3: Cross multiply
    1,969,978.13x = 4,313,621.25 × 4,313,621.25
  4. Step 4: Simplify right side
    1,969,978.13x = 18,607,328,288,451.56
  5. Step 5: Solve for x
    x = 18,607,328,288,451.56/1,969,978.13
  6. Step 6: Final answer
    x = 9,445,449.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.